Publications by authors named "Genshun Wang"

Crystalline-silicon heterojunction back contact solar cells represent the forefront of photovoltaic technology, but encounter significant challenges in managing charge carrier recombination and transport to achieve high efficiency. In this study, we produced highly efficient heterojunction back contact solar cells with a certified efficiency of 27.09% using a laser patterning technique.

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Article Synopsis
  • Back contact silicon solar cells eliminate grid lines, enhancing their aesthetic for use in buildings, vehicles, and aircrafts while allowing for self-power generation.
  • New laser techniques improve the production process, achieving the first silicon solar cell with over 27% efficiency by using hydrogenated amorphous silicon for surface passivation and implementing a unique dense passivating contact.
  • The approach significantly reduces processing time and includes the development of indium-less cells at 26.5% efficiency and silver-free cells at 26.2%, supporting the growing demand for solar technology in various applications.
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